Aie-compjessos



G. IVI. TURSKY, IR COMPRESSOR. APPLICATION' FILED APR. l1. 1920.

Emma Mar.15,192-1.

c. MY. TURSKY.

AIR COMPRESSOR v l, I l APPLICATION FILED APR. IIT, |920. i 1,371,824. Patented Mar. 15,1921.

` 2 SHEETSS IIIIIHHHIHHHIIH the lubricant for vvhich purpose the 'arrangel ment is as follows: The piston 23 is provided centrally with a laterally disposed cylinder 31 having a cap or head 31 at one end and operating in said cylinder is ay piston 32. Each piston head 24 is orined'with a'J to the rear end of piston 32, said piston hav-4 ing a reduced` diameter at 37 that the oil -niay iow from passage 36 through cylinder 31 and drop into cup-shaped casing 12. From the bottom of the casing 12 oil pas# se ges 38 run to an'oil Chamb r 39 in the base 10. F rom chamber 3 9 lateral oil passages40 in the shaft 30 lead to' an axial oil passage 41formed in said shanl and in the rotary element rigid therewith'. From ne r the upper end of the auxiliary passage 41 a lateral oil passage 42 leads to an an- .nular oil groove 44 formedY in a hearing 30 block 43 in the upper face of the rotary element 30 to provide a universal bearing for the ball head 32a on the lower end of the piston T he ball head 32a has an annular oil groove 45 from which oblique oil passages 46 lead upwardly in said head t0 ,a central oil passage 47 formed in the piston 32 and leading to the front end of the piston to communicate with the cylinder 31.

With the described arrangement a complete revolutiono` the revolving element 30 will cause a completeforward and return stroke of the {ioat piston 23, that is to say. the rotary drive element 30 in turning through 180 Will effect a complete compres sion stroke of one piston head 24 and a suction stroke Aof the opposite piston head 24 in their respective cylinders 14. At the same time the oil piston 32 Will make a complete suction and discharge stroke, or a for- 50 ward and return stroke, by a turning of drive clement 30 through 180, the suction stroke being completed inc90 and the discharge stroke in the next 90 in the turning of drive element 30. Tl1us,.in operation, the

revolving drive element 30 when turned from the position shown in Figs. 1 and 2 through 90 to the position shown in Figs. 3 and 4 will have given one-half a compression stroke to the right hand piston 24 and V one-half a suction stroke to the vleft hand piston 24 and the remaining half of said compression and suction strokes Will be comleted in the 'next 90 movement of the rive element 3G. in Fig. l the floating piston 23 is Shown with the right hand pidan pend with "the adjacent end 27 of the cylin- ,air passages 28 vin the right andlcftfhdnd head 24 after having just completed its suction stroke and the left hand piston head 24 as just about to begin its suction stroke. AAW, lthis time the air passageV 28 in the right hand" .piston head 24 will communicate at its outer Nl der air passage 25 to thus admit air as at 26 to the ri ht hand cylinder 14 in front of said piston head2 it being understood that-thc curved an' passages 28 of. the respective pis-f ton heads 24 arerespective@1 at the near side`1 c* the one pistonhead and the Afar side of other piston head. n a complete suction stroke of the right hand'piston head 24, said l piston head will, be given a turning move- '80- ment about its own 'axis in a direction to maintain its curved passage 28 always in communication with the end 27 of air' passage 25, ,for continued inlet of air to the right hand cylinder 14, and this will be true also of the left hand piston head 24 in making a suction stroke since although it turns' in the same direction as the right handpiston its curved paage 28 is on the near side ofothe left hand piston head and therefore during the complete suction stroke, said air passage 28 like the corresponding right hand passage will be maintained in communication with the adjacent end 27 ot the'cylinder passage 25. On the compression stroke of the right hand piston head'24 the floating piston, 23, will be darned in the opposite, direction about its axis and in so turning the right hand curved passage 28 will, upon the start of the compression stroke, be turned out of communication with the end 27 of the -ad-A jacent air passage 25 and with respect to th(-A left hand piston head 2432 the same thing Will occur on the compression strokedueto the relative positions of the respective'urvad piston heads 24.

4In the movement of the ball head 32 'of'.

piston 32 through 180 about the center of; the revolving element 10, the oil piston 32 l1.10 will have been given a complete forwardf and return stroke., On the suction stroke of piston 32 due to the ball head 32 moving through 90 to the position, of Figsl- 3 and 4, said piston 32 will first close and cut off the outlet oil passages 36 leading from the oil chambers 34A of the respective piston heads 24 and the continued suction stroke of said piston 32 will draw oil from chamber .39 to the cylinder 31l in front of said piston because simultaneously withl the cutting off of the passages 36 the annular groove 45 of ball head 32av will be placed in 'communication with the a' ular i groove 44 in the bearing block 3 so that oil may be drawn by the .suction stroke of piston 32 from chlmher 39 through/ports 40 to and through an axial-'menge 41,'late1ul passage 42, grooves 44, 45 oblique passages 46, und the axialpage 47 of piston 32 to 130 the cjlinder l lie :eert-90:5moveirieiiii of the balllieedf about the exisof 'elle re- 'volving" element 30, the pistou 32- viiil'l be .fgiveri e compressioxi-sroke.during 'which oil .Will be' forced from' Vthe cylinder 3l in frost. olif the piston 32 throughth'e pessges Sil-,oil y chambers 34 'sind peeseges endwill gravitete tothe `easing 12 tovfind its 'Wayfebyvpes sages 38 tor'eturnto the oiloiiember 39. At the same time the. oilfromeasing 12 will reach bearings provided for revolving eiement and its Shafer-30a', salici bearings' in the illustrated 'exemple being 'es follows:

l An annulerv bell bearing and rece 4:8' ere provided .for 'the element 30 beneath' the ,senile"adjacentV to the' shelf# 30V 'and below said bearin '48 eli a'imulerseries .of vertical- "I, en

beariiigrol ers 49 ieprovided about the shaft 30". Neer ythe*lower.eiid'the shaft 30al Vis ofreduced-.diaimeter as a'r 50 providing ,Tthei'eby a' shoulder vloiresting' on en annular ball bearing 51, tile elemelucsk forming the 'fue of which are ldivided 'vertieelly-end sei-"f I,bearing rests 'ou efsecond 'rali bearing 52;, the elements forming; theme@ of which .are divided, vloorizzontell-y alibi embrace the reduced end 50. Seid redueef'eud 50 `threaded to receive zr/nut' 53v ifo clamp the each piston lieed 24: has in 'hearings 52, 5l. against. 'shoulder '54' enbase i0, and shoulder 55' ou shaft 3LP.

lt willl be seen theltiie essege 28,129 of et end always yai the .exterior of 4'the cyindei il'eiid constently fopen to the atmosphere,the-cutting ed' and the making and breaking othecommunicetion with the vlongitudine.el cylinder passages 25 heilig due to the surriingoithe piston Tread While the eonstaut'eommunioa'- tion with the etmosphere is maintained.

I would siete ir; conclusion tlm-i; While the iiiustreted exemypie eonstieutes e. prec'eeelf embodiment oizny invention? i do not limit in self s'triotly to elle meehe'oieel detailsliefern illiisti'eed, Since manifestly the same can be eohi'derebly varied without doper ture from the soirit of the invention es defined in the appended claims.

" Haviogii1us deseriiiea my investies", l

'cla-iwf" y,

- 1.-' An eur compressor including fr ovini der having e dieoiiergeport and en air inlet passa-ge, toge'iier: wiiiii pisiion operatingiu said eylin der end 'actuating vmee-:os tl'iereor7 said piston'lmving en oir pessageconsteosy open t0 the etmospirereend adopted to moire. and breek communica-sion wioii the oir y sage of .the cffvliuder' by, the movements of ythe piston.

2. Au air compressor.iueiudirge cylinder having@ discharge port, end e longitudinal ei'rpassege leading to elielr iiv onder lie oyIinder, together with e `pisioii opersisirigf l Y 2 rio.erriiiere.y en. 1

in seid cylinder end ecm means. for said piston, seid piston e 'ending rear 'Werdly through ille cyiioieo emi fr fiend means iueiud @,evreee- 'A v longieudimil air inlet passage. the rear .end which is exterior of the cylinder.

'3. Alu oir compressor including d cylinder lruviiig'si discharge port, and a longitudinal air ssage leading' io thefront end oi' f er, together wither plston operzib,

the cylin Ving `in said cylinder and aetimtingmeims for said iston, said'pistori having u longitudinalelr passage et the periphery and extending longitudinally of the piston, the in- .let vend ofsaid last-mentioned nir passage being coustafnlljv open to the atmosphere.

v 4. in air compressor comprising a @liuder having a discharge port and a longitudinel air passage communicating with the c vlinder near the front end and 'adjacent to the rear end. a pi vn operating in said cylinder, e revoluble drive elei'nem;v and means to reciprocate and. turn the piston by seid revolving element, ysaid piston having o,

curved. air pssoge'longitudinally of thel seni-ing'` en oil chamber, 'drivemeens for said pistoug au oil ypump forming :i connection 'between seid drive means and said pistou@ yand means forming with said oil pump en. oil cirouiemg circuit including; said elmm-- 'z bers. y

drm air compressor including ir com#l iression eyiinder .an air eompressiogrpistonfreeiproceting in seid Cylinder and turneble about its own axis, a .revolubie drive eieirien't for said piston, and e. pump cylinder los `)iston having aj 'universai eoimeetiouiviiih he drive elemerii, and constituting with the cylinder in which it'opemtes o driveiorirleei tion between seid rotary' drive,eiemeioi and seid eir eomo'ressmgpieton.'

7,-An, oirfoouepressor including-e eozoopressioncyiinder, en sir compressing pistou'v reciproeeting inf seid eyiirider and turnebie v about its own airis: a revolirble drive elemen' for seid piston, and ef'pistoii estebiisiiiog .e

drive connection between seid ciriife elemena and compression pisfeoii and no 'erselijff oor.a nec'sed .wiii one oiiie same slid having e. reoiprooeting eugegenieo w'iiiilie eikel?, All oir compressor ine if compression eyiiuii air sempre iig pigeon; op#

` iis'iorz iis/vi refieres).

erstiiig'iri'seiii o viirid e. s 1 I 1 v mi oli -eiierouer eher-em er1/oil chemio-en e 'iiig oii eiro'uiei 'der end e. piszon eoiiliee'ion ieiweer ment and said, air compressing piston for actuating the lat-ter.

9. An'air compressor including a revoluble drive element, a fioating piston disposed in a plane approximately parallel with the plane of rotation of said element, a cylinder in which said piston operates, andl means forming a drive connection between said piston and said element. said drive connection including a cylinder on said piston, and a second piston operating in said last-nientioned cylinder and having an oficenter universal connection with said revoluble drive element. L

10. An air compressor including a frame. a revoluhle drive element turning in said frame` a double-ended floating piston disposed approximately in a plane parallel with the plane of `rotation of said revoluble element, cylinders in which' the ends of said piston operate, a cylinder transversely disposed on said piston, and a` second piston 0perating in said last-mentioned.cylinder and having an oi-center universal.v connection with said revoluble drive element, said frame having an oil chamber and there being oil chambers in both ends of said double-ended piston, said chambers in the piston and said chamber in the frame 1neing in communication through passages extending through said revoluble element and through the piston connected therewith and thetransversely disposed cylinder. i

11. An air compressor including a base, a casing ons-aid base 'and adapted 'to catch oil, a revoluble element turning in said casing, bearings in said base for said revoluble narines head in said revoluble eleinent,.means "establishing oil communication between said casing and the second mentioned cylinder and betiveen'the latter and the oil chambers in said piston heads. y

12. An air compressor including a cylinder having a discharge port, and an air inlet passage leading into said cylinder, an air compressing piston operating in said ,cylinder, said piston having an air inlet passage curved for its major portion and presenting an approximately straight inlet end at the rear end of thepiston and constantly open to the atmosphere and means to reciprocate said piston for airv compression, and to turn said piston for making and breaking communication bet-Ween the air passage of the piston and the air passage of the cylinderv for admitting air to the cylinder during the suction stroke of the piston and cutting off the air on the compression stroke ofthe piston.

CHAR-LES M. TURSKY.

fio 

